Samsung AVXC4H052/072/100/110/145CE, Service Manual

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PCB Diagram
Samsung Electronics 6-4
6-1-3 Mini 4 way cassette type
The red number connecter is not used
① ② ③
#1 Input Operating Capacitor Motor
#2, #4: Not Used
#3: Motor Control Signal
#5: N phase Voltage
④
#1: L phase
#2: N phase
⑤
#1~4: Electrically Operated Valve
Control
#5: DC12V
⑥ ⑦
#1, #6: DC12V
#2~5, #7~10: LOUVER control
⑧
#1,3: DC12V
#2: Error CHK Out
#4: Comp. CHK Out
⑨
#1: GND
#2: EXT_CTRL Output
⑩
#1: GND
#2: Float S/W
⑪
#1: Room Temp. Sensor
#2: GND
#3: EVA IN Temp. sensor
#4: GND
⑫
#1: EVA Out Thermistor
#2: GND
⑬
#1: GND
#2: Heater Discharge Output
⑭
#1: 5V input
#2: GND
#3: Hall IC output
⑮
#1: Comm. Signal F3
#2: Comm. Signal F4
#1: Comm. Signal F1
#2: Comm. Signal F2
#1: DC12V
#2: GND #1~5: LED Control
#6: AUTO_S/W
#7: REMOCON_SIGNAL
#8: GND
#9: VCC #1 : DC12V
#2: FAN SSR OUT
CN62- Electrically Operated
Valve Control
CN76-SUB PCB Connection CN60-Louver CN81-External Control Out
16
17 18 19
CN7 5 -Ventilator CN74- Drain pump CN73- Fan Motor CN71-AC power
CN83- External Control OUT CN 5 1-Float S/W CN41- Temp. Sensor CN42- Temp. Sensor
CN43- Heter Discharge Temp CN44- RPM Feedback CN33-Wired Remocon Comm.
CN31- Indoor/outdoor Unit
Communication
CN32-Remocon DC12V CN10-Micom Download CN91-Display CN13-SSR Fan Control
20
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